Pouring sheet



April 7, 1942- G. WATROUS 2,278,751

POURING SHEET Filed Aug. 10, 1940 l/ a III/11111111111111 INVENTOR. Gear6 (fwd/0w- ATTORNEYS.

Patented Apr. 7, 1942 I umrso JSTA azvsasi Y POURING SHEET George to TheCreek, Mich.

W. Watrous, Battle Creek, Mich, assignor Duplex Printing Press Company,Battle Application August 10, 1940, Serial No. 352,141

2 Claims.

First, to provide a new and 1mproved pouring I sheet of the classdescribed.

Second, to provide such a sheet which is rein forced in such a way as totend to prevent injury thereof without interfering with the practicaluse thereof in a casting box, even though very light weight metal isused in forming the sheet so that it will not have sufiicient mass tochill the printing edge of the plate.

Third, to provide such a sheet with a reinforcing and stifiening memberthereon which serves as a stop to limit movement into the casting box.

Other objects and advantages pertaining to details and economies ofconstruction and operation will appear from the description to follow.The invention is defined in the claims. A preferred embodiment of myinvention is illustrated in the accompanying drawing, in which:

Figure 1 is a side view of a casting box with my improved sheet inposition therein.

Fig. 2 is a detail partial sectional view taken on.

the line 2-2 of Fig. 3.

Fig. 3 is a detail sectional view taken on the line 33 of Figs. 1 and 2.

Fig. 4 is a perspective view of my improved pouring sheet.

My improved pouring sheet I is specially designed for use in a castingbox 2 for casting tubular plates for use on printing presses such asnewspaper presses. Such a casting box consists of a suitable base 3 onwhich a stationary drag 4 is mounted. A hinged cope 5 is mounted toswing to close a semi-cylindrical opening in the face of the drag and isalso provided with such a semi-cylindrical opening in its face to form acylindrical casting space 6. Above the cylindrical opening 6 in suchcasting boxes, a fixed spout I is provided for the type metal.

My improved pouring sheet I consists of a thin sheet 8 of spring steelformed into a curve slightly larger than the. curve of the inside of thecylindrical opening 6 of the casting box, so that when the sheet isinserted in the top of the cylindrical opening 6, it will resilientlyhug the walls thereof. The circumferential dimension of the sheet whenit is in position is substantially the same as the e circumferentialdimension of the cylindrical opening 6 in the casting box. The onlydifference is represented by the width of the mat bar 9.

The pouring sheet extends downwardly into the cylindrical opening 6 sothat its lower edge overlaps the upper edge of the matrix I!) as shownin Fig. 2, and it is essential that the sheet metal forming the pouringsheet be sufficiently thin so that its mass will be sufiiciently smallto prevent excess chilling of the printing edge of the plate. If suchthin sheet metal is used, the sheet is apt to become damaged and toreinforce the sheet I provide a spring metal band II extendingcircumferentially of the sheet and of a length to substantially surroundthe sheet. The ends [2 of theband are bent outwardly away from the sheetas is best shown in Figs. 3 and 4, so that the band and particularly itsends may serve as stops to limit movement of the pouring sheet into thetop of the casting box as is well shown in Fig. 2-. The band II ispreferably welded to the sheet, although it might be fastened in otherways.

In order to insert the pouring sheet, it is neces-, sary to spread theedges l3 thereof somewhat in order to permit the pouring sheet to passthe spout 1 and the resiliency of the sheet must be such that it is easyto spread the sheet. The resiliency of the band H in place, added to theresiliency of the sheet, must not be too great to permit this.

I have found that the provision of the reinforcing band makes itpractical to use very thin' sheet metal in forming the sheet, since theband tends to stiifen the sheet and to resist deformation thereof. Theband may be applied at a minimum of cost and with the ends of the bandbent as shown, it is not necessary to make use of any additional steps.

The terms and expressions which have been herein employed are used asterms of description and not of limitation. There is no intention in theuse of such terms and expressions of excluding any equivalents of thefeatures shown and described. It is recognized that variousmodifications are possible within the scope of the invention claimed.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A pouring sheet for use with casting boxes for making tubular platescomprising a thin sheet of spring metal formed on a curve slightlylarger than the curve of the inside of the box and of a length to extendinto the top of the box far enough to cover the upper edge of the matrixand to extend above the top of the box and willciently flexible topermit a user to spread it, and a band of metal extendingcircumferentially of said sheet and fastened to the outer surfacethereof to stiffen and reinforce said sheet and leaving the sheetsufliciently flexible to be spread by the user and substantiallysurrounding the sheet at the top of the box when the sheet is in place.

2. A pouring sheet for use with casting boxes for making tubular platescomprising a thin sheet of spring metal formed on a curve slightlylarger than the curve of the .inside of .the box and of a length toextend into the top of the box far enough to cover the upper edge of thematrix and to extend above the top of the box, and a.

band of metal extending circumferentially of said sheet and fastened tothe outer surface thereof to stiffen and reinforce said sheet and havingits ends extending substantially to the meeting edges of said sheet andbeing curved away from said sheet to serve as stops to engage the top ofthe casting box to limit movement of the sheet into the casting box,said band substantially surrounding the sheet at the top .of the \boxwhen 10 the sheet is in place.

GEORGE W. WA'IROUS.

